#
#  Copyright 2019 The FATE Authors. All Rights Reserved.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
def load_device(device_spec):
    from fate.arch.unify import device
    from fate.components.core.spec.device import CPUSpec, GPUSpec

    if isinstance(device_spec, CPUSpec):
        return device.CPU

    if isinstance(device_spec, GPUSpec):
        return device.CUDA
    raise ValueError(f"device `{device_spec}` not implemented yet")
